Analysis
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max time kernel
117s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24-03-2024 14:26
Static task
static1
Behavioral task
behavioral1
Sample
w.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
w.exe
Resource
win10v2004-20240226-en
General
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Target
w.exe
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Size
1005KB
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MD5
3d18a75d8baa6693b471d0fa85a62c39
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SHA1
2347cba8679297a3547aa0e250f48690cb18cbc5
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SHA256
a2df5477cf924bd41241a3326060cc2f913aff2379858b148ddec455e4da67bc
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SHA512
c925c46ea95ff2b1cf94a5bc5b8c16d1bd0ad5663e7b565a5fefe5d0cac910d132e027a008df5f79a7f261b528c73df1a29b9272abc74184c029ef8cf7428f69
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SSDEEP
12288:wbWIqB/A1gv9XQ7ZNlZDV3LEWI+Xx+uBW6y4qNmhU:wbyxv9XQ7B3oWI+XHW6y48
Malware Config
Extracted
C:\PerfLogs\akira_readme.txt
akira
https://akiral2iz6a7qgd3ayp3l6yub7xx2uep76idk3u2kollpj5z3z636bad.onion
https://akiralkzxzq2dsrzsrvbr2xgbbu2wgsmxryd4csgfameg52n7efvr2id.onion
Signatures
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Akira
Akira is a ransomware first seen in March 2023 and targets several industries, including education, finance, real estate, manufacturing, and consulting.
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
powershell.exedescription pid pid_target process target process Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2516 2260 powershell.exe -
Renames multiple (8551) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 47 IoCs
Processes:
w.exedescription ioc process File opened for modification C:\Users\Public\Pictures\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\FreeCell\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\AS4I30IR\desktop.ini w.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini w.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini w.exe File opened for modification C:\Users\Public\Downloads\desktop.ini w.exe File opened for modification C:\Users\Public\Libraries\desktop.ini w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI w.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\JP38OXIN\desktop.ini w.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini w.exe File opened for modification C:\Users\Admin\Music\desktop.ini w.exe File opened for modification C:\Users\Public\Music\desktop.ini w.exe File opened for modification C:\Users\Public\Documents\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\Purble Place\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\Solitaire\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\266EQP1S\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini w.exe File opened for modification C:\Users\Public\Desktop\desktop.ini w.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini w.exe File opened for modification C:\Program Files\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\SpiderSolitaire\desktop.ini w.exe File opened for modification C:\Users\Admin\Links\desktop.ini w.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini w.exe File opened for modification C:\Users\Admin\Videos\desktop.ini w.exe File opened for modification C:\Users\Public\desktop.ini w.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\Stationery\Desktop.ini w.exe File opened for modification C:\Program Files (x86)\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\Hearts\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini w.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini w.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini w.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini w.exe File opened for modification C:\Users\Public\Videos\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\Chess\desktop.ini w.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini w.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini w.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini w.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini w.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini w.exe File opened for modification C:\Program Files\Microsoft Games\Mahjong\desktop.ini w.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini w.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\2Y0HPGOE\desktop.ini w.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini w.exe File opened for modification C:\Users\Admin\Documents\desktop.ini w.exe File opened for modification C:\Users\Admin\Searches\desktop.ini w.exe -
Drops file in System32 directory 1 IoCs
Processes:
powershell.exedescription ioc process File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Drops file in Program Files directory 64 IoCs
Processes:
w.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_TexturedBlue.gif w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099196.GIF w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\schema\triggerConstraints.exsd w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+8 w.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\fr-FR\picturePuzzle.html w.exe File created C:\Program Files\VideoLAN\VLC\locale\nb\akira_readme.txt w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0157191.WMF w.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Jamaica w.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEERR.DLL w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Fiji w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.app_1.0.300.v20140228-1829.jar w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-attach.xml w.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Push\NavigationUp_SelectionSubpicture.png w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107750.WMF w.exe File created C:\Program Files\VideoLAN\VLC\locale\br\akira_readme.txt w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_Casual.gif w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21535_.GIF w.exe File opened for modification C:\Program Files\Windows NT\TableTextService\it-IT\TableTextService.dll.mui w.exe File opened for modification C:\Program Files\7-Zip\Lang\fur.txt w.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Full\pushplaysubpicture.png w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.bindings.nl_zh_4.4.0.v20140623020002.jar w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.metadata_2.2.0.v20131211-1531.jar w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\CreateSpaceImageMask.bmp w.exe File opened for modification C:\Program Files\DVD Maker\ja-JP\DVDMaker.exe.mui w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01434_.WMF w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH01332U.BMP w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\STS2\HEADER.GIF w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18210_.WMF w.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Desert\akira_readme.txt w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\North_Dakota\Center w.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\en-US\micaut.dll.mui w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\META-INF\eclipse.inf w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0075478.GIF w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-api.xml w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-modules-profiler-selector-api.jar w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\InformationIcon.jpg w.exe File created C:\Program Files\Windows Mail\de-DE\akira_readme.txt w.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\win\CP1253.TXT w.exe File created C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\es-ES\akira_readme.txt w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Microsoft.Office.Interop.InfoPath.SemiTrust.xml w.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\stop_collection_data.gif w.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\STRTEDGE\THMBNAIL.PNG w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107188.WMF w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\META-INF\MANIFEST.MF w.exe File opened for modification C:\Program Files\Windows Journal\it-IT\MSPVWCTL.DLL.mui w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Jamaica w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18193_.WMF w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21297_.GIF w.exe File opened for modification C:\Program Files\Java\jre7\lib\security\javaws.policy w.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Goose_Bay w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\Certificates\Verisign\Components\VeriSign_Class_3_Public_Primary_CA.cer w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Ushuaia w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ACCDDSLM.DLL w.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\de-DE\slideShow.html w.exe File created C:\Program Files\VideoLAN\VLC\locale\gu\LC_MESSAGES\akira_readme.txt w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\calendars.properties w.exe File created C:\Program Files\Java\jre7\lib\zi\Antarctica\akira_readme.txt w.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Casual.css w.exe File opened for modification C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\RedistList\FrameworkList.xml w.exe File created C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\ja-JP\css\akira_readme.txt w.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\203x8subpicture.png w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Detroit w.exe File opened for modification C:\Program Files\Microsoft Games\Multiplayer\Checkers\fr-FR\ChkrRes.dll.mui w.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\lib\derby.war w.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
w.exepowershell.exepid process 2092 w.exe 2092 w.exe 2516 powershell.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe 2092 w.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
powershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 2516 powershell.exe Token: SeBackupPrivilege 2572 vssvc.exe Token: SeRestorePrivilege 2572 vssvc.exe Token: SeAuditPrivilege 2572 vssvc.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\w.exe"C:\Users\Admin\AppData\Local\Temp\w.exe"1⤵
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:2092
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -Command "Get-WmiObject Win32_Shadowcopy | Remove-WmiObject"1⤵
- Process spawned unexpected child process
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2516
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2572
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD579cf9a3528b91cdf60af14c39d64bea5
SHA1c23166e58166bb0bf1ba091570853c226f5bbdfa
SHA25681f06e74f63da97046acdc3ddf030b1a724b90e5b82114ce872c7febe7daef74
SHA512800f1ec23d4acfe31e15638af14ef353c8b83ac6af7def2eb69792d5abcbf08c970c71c395cd364156eb8deef350b4409b28b091ee1b78e34900f4741c79506f